Campbellite refers to any of the religious groups historically descended from the Restoration Movement

Restoration Movement

The Restoration Movement is a Christian movement that began on the American frontier during the Second Great Awakening of the early 19th century...

, a religious reform movement in the early 19th century in the United States

United States

The United States of America is a federal constitutional republic comprising fifty states and a federal district...

. The major groups are:

• The Churches of Christ movement
• Christian Church (Disciples of Christ)
  Christian Church (Disciples of Christ)
  The Christian Church is a Mainline Protestant denomination in North America. It is often referred to as The Christian Church, The Disciples of Christ, or more simply as The Disciples...
  
  
• The Christian churches and churches of Christ
• The churches of Christ (non-institutional)
  The churches of Christ (non-institutional)
  The label "non-institutional" refers to a distinct fellowship within the churches of Christ who do not agree with the support of para-church organizations by local congregations. They contend that the New Testament includes no authority for churches' support of such institutions...
  
  

Some (though not all) members of these groups consider the term "Campbellite" derogatory, saying that they are followers of Jesus

Jesus

Jesus of Nazareth , commonly referred to as Jesus Christ or simply as Jesus or Christ, is the central figure of Christianity...

, not Campbell. They draw parallels with Martin Luther

Martin Luther

Martin Luther was a German priest, professor of theology and iconic figure of the Protestant Reformation. He strongly disputed the claim that freedom from God's punishment for sin could be purchased with money. He confronted indulgence salesman Johann Tetzel with his Ninety-Five Theses in 1517...

's protest of the name "Lutherans." Others deem it a neutral tribute to the origins of their churches in the work of Thomas Campbell

Thomas Campbell (Restoration movement)

Thomas Campbell was a Presbyterian minister important in the Second Great Awakening of the United States. Born in County Down, northern Ireland, he began a religious reform movement on the American frontier. He was joined in the work by his son Alexander Campbell...

 and Alexander Campbell

Alexander Campbell (Restoration movement)

Alexander Campbell was an early leader in the Second Great Awakening of the religious movement that has been referred to as the Restoration Movement, or Stone-Campbell Movement...

 (among others). These groups were originally called "reformed Baptist", but were not related to the Reformed Baptist

Reformed Baptist

Reformed Baptists are Baptists that hold to a Calvinist soteriology. They can trace their history through the early modern Particular Baptists of England. The first Reformed Baptist church was formed in the 1630s...

 tradition.
According to Roy Hattersley (David Lloyd George: The Great Outsider;Little Brown 2010) Lloyd George grew up in a branch based in North Wales, in the nineteenth century.

Other prominent individuals in the early movement included Sidney Rigdon

Sidney Rigdon

Sidney Rigdon was a leader during the early history of the Latter Day Saint movement.-Baptist background:...

 and Parley P. Pratt

Parley P. Pratt

Parley Parker Pratt, Sr. was a leader in the Latter Day Saint movement and an original member of Quorum of the Twelve Apostles from 1835 until his murder in 1857. He served in the Quorum with his younger brother, Orson Pratt...

, who, along with more than 3,000 of their adherents converted to the Church of Jesus Christ of Latter Day Saints or "Mormonism

Mormonism

Mormonism is the religion practiced by Mormons, and is the predominant religious tradition of the Latter Day Saint movement. This movement was founded by Joseph Smith, Jr. beginning in the 1820s as a form of Christian primitivism. During the 1830s and 1840s, Mormonism gradually distinguished itself...

" in the 1830s in Ohio

Ohio

Ohio is a Midwestern state in the United States. The 34th largest state by area in the U.S.,it is the 7th‑most populous with over 11.5 million residents, containing several major American cities and seven metropolitan areas with populations of 500,000 or more.The state's capital is Columbus...

.